Even if they do not, it’s not your legal responsibility.Long version: It actually depends on your method of payment, and it’s not always clear.Credit card payments: clearly not you problem, no 1099s needed.Zelle payments: you DO need to send 1099s for Zelle payments.PayPal, Venmo and Cash App payments: this is where it gets tricky.

With actual cash, you just transfer it. yes, but you can still bid with lender approval - without appraisal contingency - you send in deal (app), it gets approved by lender its functionally the same as cash (except in true lightning speed situations where there is a quick auction with little time to prep but thats generally pretty rare I'd think)Right, but that's not cash or functionally the same as cash because the lender can change the terms at the last minute, as often happens with less experienced hard money lenders.

Super. 601, 604 (App.

You don't have to buy one, you can install an app on your phone that will accomplish the same thing.

You can take pictures of receipts and log in to the app or work on the desktop.

Use an app like DealMachine or Propstream.

I did try to set up a property management software for collections but as I live in a rural area received a TON of pushback from my tenants about sending money over an App they were not familiar with.

The app is user-friendly and integrates with popular CRMs, making it ideal for both beginners and experienced investors.

Karl's Mortgage Calculator - This is a downloadable app for your phone. 

Can you share whick app you chose to use in the end?